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53 lines
1.5 KiB
Docker
53 lines
1.5 KiB
Docker
# ============================================================
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# hw-ws-service Dockerfile — 多阶段构建
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# 构建阶段:Go 编译(含 CGO for libopus)
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# 运行阶段:Alpine + libopus + ffmpeg(最终镜像 ~60-80MB)
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# ============================================================
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# ---- 构建阶段 ----
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FROM golang:1.23-alpine AS builder
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# 安装 CGO 编译所需的 C 工具链和 libopus 开发头文件
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RUN apk add --no-cache gcc musl-dev opus-dev
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WORKDIR /app
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# 使用国内镜像加速,避免 proxy.golang.org 超时
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ENV GOPROXY=https://goproxy.cn,direct
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# 先拷贝 go.mod/go.sum 利用 Docker 层缓存(依赖未变时跳过 go mod download)
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COPY go.mod go.sum ./
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RUN go mod download
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COPY . .
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# CGO_ENABLED=1 必须开启(hraban/opus 是 CGO 库)
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# -trimpath 去除本地路径信息(安全性)
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# -ldflags="-s -w" 去除调试符号(缩减二进制大小)
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RUN CGO_ENABLED=1 GOOS=linux \
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go build \
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-trimpath \
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-ldflags="-s -w" \
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-o hw-ws-service \
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./cmd/main.go
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# ---- 运行阶段 ----
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FROM alpine:3.20
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# 运行时依赖:
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# opus — libopus 动态库(hraban/opus CGO 绑定需要)
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# ffmpeg — MP3/AAC 解码为 PCM
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# ca-certificates — HTTPS 请求 OSS 需要根证书
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RUN apk add --no-cache opus ffmpeg ca-certificates && \
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# 创建非 root 运行用户(安全最佳实践)
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addgroup -S hwws && adduser -S hwws -G hwws
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COPY --from=builder /app/hw-ws-service /hw-ws-service
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# 以非 root 用户运行
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USER hwws
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EXPOSE 8888
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ENTRYPOINT ["/hw-ws-service"]
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